| 释义 |
Noun: Gymnospermae- Plants having naked seeds not enclosed in an ovary; in some systems considered a class (Gymnospermae) and in others a division (Gymnospermophyta); comprises three subdivisions (or classes): Cycadophytina (class Cycadopsida) and Gnetophytina (class Gnetopsida) and Coniferophytina (class Coniferopsida); in some classifications the Coniferophytina are divided into three groups: Pinophytina (class Pinopsida) and Ginkgophytina (class Ginkgopsida) and Taxophytina (class Taxopsida)
- class Gymnospermae, Gymnospermophyta, division Gymnospermophyta
See also: gymnospermous Type of: class Part of: division Spermatophyta, Spermatophyta Encyclopedia: Gymnospermae |